Arrangement for mixing emulsions.



E. SCHMIDT.

ARRANGBMENT FOR MIXING EMULSIONSl APPLIUATION FILED Emma, 1912.

l? v /f//r f5 spindle sectionsl c and'c. will be axially ap- UNiTEDsTATEsjrATENT OFFICE EDUARD SCHMIDT, or LBECK, GERMANY, AssIGNoR To THEFIRM or WILH. e.

' SCHRDER, oF LBECK, GERMANY.

.ABRANGEMENT FOR MIXING EMULSIONS.

Specification o f Letters Patent.

Patented May 20, 1 913.

Application filed February 8, 1912. Serial No."67,6,361.

, ,y i l To all whom zt may concern.'

Be it known thatl, EDUARo SCHMIDT, engmeer, acitizen of the free town ofLbeck,

in the Empire Vof Germany, and resident ofV Lbeck, Germany, haveinvented a new and useful Arrangement for Mixing Emulsions, of which thefollowing is a specification,

The present invention relates to an arrangement for mixing emulsions, inwhich the thrust exerted' by the operation from oppositesides on thespindle is compensated. -In arrangements of the kind hitherto used itwould sometimes occur, that the thrust became so great on A4oneside,that the who-le spindle was longitudinally displacedv and thepassage completely cut off on the other side. Under these circumstancesthen the emul- Vsioning surface would run idle and heat.

According to the present invention the operating spindle is composed oftwo sections. It is thereby avoided that the whole spindle can bedisplaced, but. thetwo said sections can be axially displaced in anaxial direction to each other, so that the pressure of the revolvingcone on its seat can be regulated in a very accurate manner, without thetwo working surfaces influencing each other.

In the accompanying drawing the new arrangementl is exemplified.

Figure 1 is a longitudinal section, and Fig. 2 is across sect-ionthrough the new arrangement. Fig 3ds another constructional form on anenlarged scale. Fig. 4 is aA further modification of the workingsurfaces.

The liquid to' be emulsioned enters the machine Aat q. and a, inwhichmachine the spindle carrying the stepped working surfaces b and bis rotatably journaled. This spindle is of' concave construction and isdriven by means of the pulley f. The spindle consists of two sections cand c', which are coupledat g in such-a` manner, thatthey must-revolvesimultaneously and' coaxially, while, however, anaxial relativedisplacement of the'two sections is possible. For this purpose sleevesla, h are fitted on either of these sections respectively; these sleevesare provided on Vtheir outer surface with right hand 'and lefthandthreads4 respectively and are screwed therewith into the vfemalethreadinithe hub of a handwheel i, so that on the said'handwheel z'being turned in the one orthe other direction the two preached to eachother or moved farther apart from cach other respectively. Forpreventing the sleeves L, L from revolving they are engaged with lugs7c, 7c in a groove m of the stationary casing n (Fig. 2). This casing issupported on suitable webs 0 on the base plate p. The spindle isjournaled in the caslng a, by means of the ball-bearings g, Q. Otherball-bearings r, r are provided which will take up the high axial thrustexerted by the liquid on the 'spindle and transmit it from the spindleto the stationary sleeves L, L. y

The stepped faces b and '.71' coact with simil-arly stepped faces 1 and2 onthe heads 3 and 4 respectively, which are of convex construction. 'f

lnvthe constructional form illustrated in Fig. 3 cavities fc areprovided between the In these cavities the milk or the like may be mixedover again. The solid particles which have merely been flattened betweenthe first set o f working surfaces are here mixed up, are then seized bythe second step and now disintegrated.

In the constructional form shown in Fig. 4 the stepped working surfacesare disposed in such a manner that the gap al between the first workingsurface b and its seatis slightly larger than the gap cs2 between thesecond. working surface b2 and its seat, and that this gap a2 is againlarger than the gap a3 between the working surface b2 and its seat. Asthe correct gaging of these gaps .of an .adjustment of the -gaps a1,cs2, a3.

This can only be obtained by the revolving body consisting of several,relatively adjustable sections or, as shown in the drawing by the seatsfor the severalworking surfaces Vbeing adjustable. The seat of theworking surface b3 is arranged stationary in the casing, the seat forthe working surface b2 is, however, arranged in a sleeve B2 which isthreaded both on its-inside and on its outside. Tlie seatfor the workingsurface b is arranged in a second sleeve B whichv is vthreaded on itsoutside and screws into the female thread, of the sleeve B2. Thesesleeves may be" screwed into each other by vmeans of suitable wrenches.-On the casing may be further screwed a cap-nut, and the the combinationof a fixed and a revoluble member disposed in axial relation, one ofsaid members being of convex construction and having astepped actingface; the other work the material; and means 'tween said coacting faces,

of said members being of concave vconstruction and having a steppedcoacting face, said coacting faces adapted to worlc the material; andmeans for axially adjusting one of said members to vary the extent ofspace besubstantially as described.

2. In an apparatus for mixing emulsions, the combination of a fixed anda revoluble member disposed in axial relation, one of said membershaving a central opening for feeding the liquid, and being of convexconstruction and having a stepped acting face; the other of said membersbeing of concave construction and having a stepped and coacting face,said coacting faces adapted to for axially adjusting one of said membersto vary the extent of space between said coacting faces, substantiallyas described.

3. In an apparatus for mixing emulsions,

the combination of a fixed member of con-` Vex construction and having astepped acting face; a i'evoluble shaft 'having a complementarycoactiiig working face; apulley fixed on said revoluble shaft; a screw.-threaded collar mounted to move axially on said shaft; a thrust bearinginterposed between said co-llar and said pulley; and a hand-turningwheel having screw-threaded engagement with said collar and adapted toadjust. the same for varyingthe degree of thrust on said revolubleshaft, substantially as described.

'-t. In an apparatus for mixing emulsions, the combination of oppositelydisposed fixed members having stepped acting faces;v a divided andrevoluble shaft mounted coaxially with and intermediate said fixedmembers, said shaft having the respective ends thereof constructed withcomplementary stepped coacting faces; a pulley mounted on said shaft; apair of collars axially movable on said shaft; thrust.. bearingsinterposed between tlie shaft sections and Vsaid collars; and ahand-turning wheel having screw threaded connection with said collarsand operable to more the same for varying the degree of thrust on saidshaft sections, substantially as described.

In a homogenizer two coacting homogenizing elements having steppedsqueezing surfaces, and means for admitting iiuid between the surfaces.

(3. In a hoinogenizer two honiogenizing elements having steppedsqueezing surfaces, means for admitting Huid centrally of the surfaces,and means permitting discharge of the fluid from the margins of thesurfaces.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two witnesses, this twenty sixth day of January191'2.

EDUARD SCHMIDT.

lVitnesses JOHN IVULF, I-IEiNn EHLERS.

